schoonzuster
A schoonzuster is a Dutch term that translates to "sister-in-law" in English. This relationship arises through marriage. Specifically, a schoonzuster can refer to two distinct familial connections. Firstly, she is the wife of one's brother. This makes her a sister by marriage to the original person. Secondly, she is the sister of one's spouse. In this case, she becomes a sister-in-law to the original person through their marriage.
The term is gender-specific, denoting a female sister-in-law. The male equivalent in Dutch is "zwager." While